Course Content
CHAPTER 10: HALOALKANES AND HALOARENES
Topic Name 10 Haloalkanes and Haloarenes 10.1 Classification 10.2 Nomenclature 10.3 Nature of C–X Bond 10.4 Methods of Preparation of Haloalkanes 10.5 Preparation of Haloarenes 10.6 Physical Properties 10.7 Chemical Reactions
0/4
CHAPTER 11: ALCOHOLS, PHENOLS AND ETHERS
Topic Name 11 Alcohols, Phenols and Ethers 11.1 Classification 11.2 Nomenclature 11.3 Structures of Functional Groups 11.4 Alcohols and Phenols 11.5 Some Commercially Important Alcohols 11.6 Ethers
0/2
Class 12th Chemistry Online Class For 100% Result
About Lesson

1 Mark Questions

1. Give IUPAC names of following compounds      

Ans.(i). 1, 3- Dibromobutane

(ii). 1- Cholopropan-2-ol

(iii). 2, 3 – Dibromo-1-chloro-3-methylpentane

(iv). 2-Choloro-3-ethyl-2-methyl pentane

(v). 1-Chloro-2-phenylethane

(vi). 1-Chloro-1-phenyl ethane

(vii). 1, 2, 3, 4, 5, 6- hexachlorocyclohexane

(viii). 2, 2- Dihexyl 1, 1, 1-Trichloro ethane

(ix). 4, 4-dibromobiphenyl

(x). 1, 3-Dibromo -3- methyl butane

(2). Give the structures of following.:

(i). 1,3-Dichloro -2-(bromomethyl) propane

(ii). Isobutylchloride

(iii). Ortho bromotoluene

(iv). 1 – Bromo – 4 – chlorobutane

(v). 3 – Bromo – 5 – chloro – 3,5 – dimethyloctane

(vi). 2,3 – Dibromo – 1 – chloro -3- methylpentane

(vii). 2 – Chloro – 3 – ethyl -1, 4- pentadieme

(viii). 2,3 – Dibromo – 1 – chloro -3- methylpentane

(ix). 2 – Chloro – 1 – phemylpropane

(x). Tert – butylchloride

5. Which of the following will show optical is omerism

1 – bromobutane or 2 – bromobutane?

Ans. 

7. Give an example of    

 (a)  Fittig reaction             

     (b)  Finkelstein reaction.

Ans.  (a) Fittig reaction

 

2. Phenol cannot be converted to chlorobenzene by reacting with HCl.

Ans. In phenol, due to resonance, the carbon –oxygen bond has a partial double bond character and is difficult to break being stronger than a single bond. Therefore it can not be converted to chlorobenzene by reacting with HCl.

p- dichlorebenzene is having symmetrical structure therefore it can fit better into the crystal lattice which increases its melting point.

The attack of nucleophile can result in product which is a mixture of compounds both with same configuration and inverted configuration.

8. Chloroform is stored in dark coloured bottles.

Ans. Chloroform gets oxidsed slowly by air in the presence of light to an extremely poisonous gas phosgene. Therefore to avoid any exposure to air and sunlight, it is kept in dark coloured bottles.

12. How many aromatic isomers are possible for the formula ? Write the structure and names.

Exercise Files
No Attachment Found
No Attachment Found
Join the conversation
Wisdom Academy